{"id":709,"date":"2026-07-01T12:50:26","date_gmt":"2026-07-01T16:50:26","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2014-ford-f-550-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-07-01T12:50:26","modified_gmt":"2026-07-01T16:50:26","slug":"2014-ford-f-550-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2014-ford-f-550-pickup-6-7l-8-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2014 Ford F-550 6.7L Diesel Oil Guide: Capacity, Viscosity & Filters"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

What oil does a 2014 Ford F-550 6.7L Diesel take?<\/h2>\n

For the 2014 Ford F-550 equipped with the 6.7L 8-cylinder diesel engine (Engine Code T), the required oil capacity is 13.1 quarts<\/strong> with a filter change. Recommended viscosity depends on ambient temperature: 10W-30 is recommended for normal usage, while 5W-40 is suggested for severe operations or when using biodiesel blends (up to B20). AMSOIL recommends the Signature Series 5W-40 Max-Duty Diesel Oil<\/a> or Signature Series 10W-30 Max-Duty Diesel Oil<\/a>.<\/p>\n

AMSOIL product recommendations<\/h2>\n

The following AMSOIL products are listed for your 2014 Ford F-550 6.7L diesel engine to support optimal performance and protection.<\/p>\n

Engine Oil Options<\/h3>\n
\n\n\n\n\n\n\n
Product Name<\/th>\nViscosity<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series Max-Duty Diesel Oil<\/td>\n10W-30<\/a><\/td>\nDTTQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Signature Series Max-Duty Diesel Oil<\/td>\n5W-40<\/a><\/td>\nDEOQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Heavy-Duty Synthetic Diesel Oil<\/td>\n10W-30<\/a><\/td>\nADNQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Heavy-Duty Synthetic Diesel Oil<\/td>\n5W-40<\/a><\/td>\nADOQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Oil Filter Options<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Oil Filter<\/td>\nEAO98-EA<\/a><\/td>\n<\/tr>\n
WIX Oil Filter<\/td>\n57151-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Other Maintenance Fluids & Additives<\/h3>\n
\n\n\n\n\n
Category<\/th>\nProduct\/Code<\/th>\n<\/tr>\n
Air Filter<\/td>\nWIX Air Filter (49902-EA)<\/a><\/td>\n<\/tr>\n
Fuel Additives<\/td>\nInjector Clean + Cetane Boost (ADSCN-EA)<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications & Details<\/h2>\n

Proper lubrication is vital for the 6.7L Power Stroke engine to manage high-stress work cycles and heat.<\/p>\n

Oil Viscosity Guide<\/h3>\n
\n\n\n\n\n\n\n
Temperature Range<\/th>\nRecommended Viscosity<\/th>\n<\/tr>\n
Below 10\u00b0C<\/td>\n0W-30, 0W-40<\/td>\n<\/tr>\n
Above -18\u00b0C<\/td>\n10W-30<\/td>\n<\/tr>\n
Above -7\u00b0C<\/td>\n15W-40<\/td>\n<\/tr>\n
Above -29\u00b0C<\/td>\n5W-40<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note on Biodiesel:<\/strong> If biodiesel fuel blends (B20 max) are used, the use of 5W-40 or 15W-40 oil is recommended.<\/p>\n

Oil Capacity & Torque Specs<\/h3>\n
\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n
Capacity (with filter)<\/td>\n13.1 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n19 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Always check the oil level after refilling.<\/em><\/p>\n

Manufacturer Specification Notes<\/h3>\n

The AMSOIL lookup note references Ford Material Engineering Specification WSS-M2C171-F1<\/strong> for this application. In 2016, Ford superseded the original WSS-M2C171-D recommendation with WSS-M2C171-F1. Ford continues to recommend oils meeting WSS-M2C171-F1 instead of standard CK-4 motor oils for the 3.2L and 6.7L diesel engines, as testing on some CK-4 formulations showed inadequate wear protection compared to earlier CJ-4 formulations.<\/p>\n

Diesel maintenance notes for this vehicle<\/h2>\n

For owners of the 6.7L Power Stroke engine, maintenance often focuses on managing high heat and heavy loads. Because these vehicles are frequently used in commercial or industrial capacities, service intervals may be determined by engine hours rather than just mileage. Key areas of focus include fuel system integrity, turbocharger health, and robust cooling systems to manage the thermal demands of towing or constant idling.<\/p>\n

Common diesel oil-related concerns and how AMSOIL products may help<\/h2>\n
\n\n\n\n\n\n
Concern<\/th>\nWhy it matters<\/th>\nAMSOIL Product<\/th>\nHow it may help<\/th>\nLimitation<\/th>\n<\/tr>\n
Severe-service towing<\/td>\nIncreases engine heat and stress<\/td>\nSignature Series 5W-40<\/a><\/td>\nMaintains proper viscosity under high heat<\/td>\nRequires regular monitoring<\/td>\n<\/tr>\n
Engine Wear<\/td>\nHigh-pressure diesel environments cause friction<\/td>\nSignature Series 10W-30<\/a><\/td>\nDelivers up to 6X more wear protection<\/td>\nNot a repair for existing damage<\/td>\n<\/tr>\n
Fuel System Deposits<\/td>\nDiesel fuel can cause injector issues<\/td>\nInjector Clean + Cetane Boost<\/a><\/td>\nMay help maintain injector cleanliness<\/td>\nDoes not fix mechanical pump failure<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Common maintenance concerns for this vehicle<\/h2>\n

Based on owner reports and research, owners of the 2014 Ford F-550 should be aware of several potential areas for monitoring:<\/p>\n